The reaction between HBr and KOH is a neutralization reaction, which occurs when an acid reacts with a base to form a salt and water.
The balanced chemical equation for the reaction between HBr and KOH is:
HBr + KOH -> KBr + H2O
This equation tells us that one mole of HBr reacts with one mole of KOH to form one mole of KBr and one mole of water.
Next, we need to find the number of moles of HBr that reacted with KOH. This can be calculated using the volume (150 ml) and concentration (0.5 M) of the KOH solution:
moles KOH = 0.5 M x 150 ml / 1000 ml/L = 0.075 moles
Since one mole of HBr reacts with one mole of KOH, the number of moles of HBr is equal to the number of moles of KOH:
moles HBr = 0.075 moles
Finally, we can use the number of moles of HBr and the volume of the HBr solution (200 ml) to calculate its concentration:
concentration HBr = moles HBr / (200 ml / 1000 ml/L) = 0.075 moles / 0.2 L = 0.375 M
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a sample of 29 g of potassium completely reacts with chlorine to form 55 g of potassium chloride. how many grams of chlorine must have reacted?
26 g of chlorine must have reacted with the 29-g sample of potassium in order to form 55 g of potassium chloride.
In order to calculate the amount of chlorine that must have reacted with a 29-g sample of potassium to form 55 g of potassium chloride, you need to use the following equation:
29 g K + x g Cl2 → 55 g KClSolving for x, you get x = 26 g. Therefore, 26 g of chlorine must have reacted with the 29-g sample of potassium in order to form 55 g of potassium chloride.
Potassium chloride (KCl) is an ionic compound composed of potassium and chlorine, with a chemical formula of KCl. Potassium chloride is a white crystalline solid that is highly soluble in water.
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indications for using silver diamine fluoride include low to moderate caries risk. group of answer choices true false
"True: Silver diamine fluoride is indicated for low to moderate caries risk."is a topical treatment for dental caries
Silver diamine fluoride (SDF) is a topical treatment for dental caries (tooth decay) that has been used for many years in several countries. One of the main indications for using SDF is low to moderate caries risk. SDF works by stopping the progression of caries and inhibiting the growth of bacteria that cause tooth decay. The active ingredient in SDF, silver, has antibacterial properties that help to prevent the spread of decay and promote healing. Additionally, the fluoride in SDF helps to strengthen the teeth and prevent further decay. The use of SDF has been shown to be effective in reducing caries progression in children and adults with low to moderate caries risk. As a result, SDF is a valuable tool for managing and preventing dental caries in individuals who are at low to moderate risk for the development of caries.
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it has been found that ddt in the soil decomposes by a first-order reaction with a half-life of 12.0 years. how long would it take ddt in a soil sample to decompose from a concentration of 235 ppbm (parts per billion by mass) to 15 ppbm?
It would take 25.3 years for DDT in a soil sample to decompose from a concentration of 235 ppbm (parts per billion by mass) to 15 ppbm
The rate of a first-order reaction is given by:
d[DDT]/dt = -k[DDT]
Where [DDT] is the concentration of DDT, t is time, and k is the rate constant, which is related to the half -life (t1/2) by:
k = 0.693 / t1/2
For DDT with a half-life of 12 years, the rate constant can be calculated as:
k = 0.693 / (12 years) = 0.0577 / year
To find the time required to reduce the DDT concentration from 235 ppbm to 15 ppbm, we can use the integrated form of the first-order rate equation:
[DDT] = [DDT]0 * e^(-kt)
Where [DDT]0 is the initial concentration of DDT. Solving for t when [DDT] = 15 ppbm, we get:
t = (1/k) * ln([DDT]0 / [DDT]) = (1/k) * ln(235 ppbm / 15 ppbm)
Plugging in the value for k, we find:
t = (1/0.0577) * ln(235 ppbm / 15 ppbm) = approximately 25.3 years
So it would take approximately 25.3 years for the DDT concentration in the soil sample to decrease from 235 ppbm to 15 ppbm.
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when phenol is treated with the exces s bromine water it gives
Answer:
bromophenol
Explanation:
when phenol is treated with excess bromine water, it gives bromophenol. This reaction is an example of electrophilic substitution in which the phenol molecule acts as an electron-rich substrate and the bromine in bromine water acts as an electrophile, leading to the substitution of a hydrogen atom in phenol with a bromine atom.
Answer:
it gives 2,4,6-Tribromophenol.
why is it important to make sure that water does not unintentionally get into the t-butyl alcohol solvent when determining the freezing temperature of t-butyl alcohol?
Tert-butyl alcohol (TBA), the solvent, has a practical melting point (23–26 °C)1 and a relatively high value for kf, 8.09 kg/C/mol.
Tert-butyl is a tertiary alcohol, right?The tertiary alcohol having the simplest formula, (CH3)3COH, is tert-butyl alcohol . Tertiary alcohol, formula, and 1-butanol are some of its isomers. Tert-butyl alcohol is still a colourless solid that melts at or just below room temperature with a smell similar to that of honey.
What is the purpose of TBA?
To be announced (TBA), to just be confirmed (TBC), to really be determined or decided upon (TBD), to be declared (TBD), or other variations are placeholder terms use it very broadly throughout event management to indicate that while something will be scheduled or expected to occur, a specific detail of that is still to be fixed or set.
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if a substance undergoes a constant-pressure expansion at a pressure higher than its critical pressure, can it undergo a phase change? if so, what phases are involved?
No, a substance cannot undergo a phase change if it undergoes a constant-pressure expansion at a pressure higher than its critical pressure.
The critical pressure is the highest pressure at which a substance can exist in a gaseous state, and if the pressure is above this value, the substance will always remain in a supercritical fluid state, possessing properties of both a liquid and a gas. In a supercritical fluid state, the substance does not have distinct phase boundaries, so it cannot undergo a phase change. Therefore, if a substance is subjected to a constant-pressure expansion at a pressure higher than its critical pressure, it will remain in the supercritical fluid state, undergoing a smooth transition between gas-like and liquid-like behavior.
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A pile of firewood is more stable as ash and smoke than firewood.
Why does this pile of firewood not immediately release the energy in
Its chemical bonds? (use the word activation energy in your answer)
The pile of firewood does not immediately release the energy in its chemical bonds because activation energy is higher in case of solids where forces of attraction is maximum.
What are forces of attraction?Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
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I’ve been having a hard time with percents in chemistry, could anyone help?
Question: The percentage of nitrogen, by mass, in copper(II) nitrate, Cu(NO3)2, is….
1) 14.9%
2) 33.9%
3) 36.5%
4) 40.2 %
5) 45.1%
Explanation:
3) 36.5%
The percentage of nitrogen, by mass, in copper(II) nitrate, Cu(NO3)2, is 36.5%
If you were to complete a mass balance on a coffee roaster, which of these would NOT be a material stream exiting out of the roaster? a. Spent coffee grounds b. Chaff c. Roasted coffee beans d. Water vapor, carbon dioxide, and other VOCs
Out of the options listed, "Water vapor, carbon dioxide, and other volatile organic compounds (VOCs)" would not be considered a material stream exiting the roaster.
A material stream is a flow of a physical substance, such as a solid, liquid, or gas, that enters and exits a system or process. In the context of a chemical or process plant, a material stream is a stream of raw materials, intermediate products, or final products that are being produced, transported, or processed.
To perform a mass balance on a coffee roaster, you would consider all the material streams that enter and exit the system. These are gaseous emissions resulting from the roasting process and are not a physical material. The other options, "Spent coffee grounds," "Chaff," and "Roasted coffee beans" are physical materials that can be weighed and measured, and would be considered as material streams exiting the roaster.
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How many moles are in 4.5 x 10^22 molecules/atoms of co2?
One mole of a substance contains Avogadro's number (6.022 x 10^23) of entities (atoms or molecules). So, to convert from the number of entities to the number of moles, we can divide the number of entities by Avogadro's number.
In this case, 4.5 x 10^22 CO2 molecules is equal to 4.5 x 10^22 CO2 molecules / 6.022 x 10^23 CO2 molecules/mol = 0.07468 moles of CO2.
Molecules are the basic building blocks of matter. They are composed of two or more atoms that are chemically bonded together. The type of bond between atoms determines the properties of the molecule. For example, water molecules (H2O) have a covalent bond between the hydrogen and oxygen atoms, resulting in the unique properties of water. Different types of molecules can range in size, from simple molecules like hydrogen (H2) to complex macromolecules like proteins.
The properties of a molecule, such as its physical state, reactivity, and color, depend on its structure, the number of atoms and types of bonds within it. In biology, molecules play a crucial role in all cellular processes, including energy metabolism and the formation of cellular structures and signaling pathways. In chemistry, molecules are studied to understand their behavior and how they react with other molecules. Understanding molecules is essential in many fields, including medicine, environmental science, and materials science.
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which intermolecular force do you think is primarily responsible for the difference in boiling point between 1-hexanol and nonanal (structures below)?
The main intermolecular force responsible for the difference in boiling point between 1-hexanol and nonanal (structures below) is induced dipole-induced dipole (London dispersion) forces.
These forces are weak, but their cumulative effect is enough to cause a difference in boiling point between these two molecules. 1-hexanol has a higher boiling point than nonanal because of its larger molecular size, which leads to stronger induced dipole-induced dipole forces.
Intermolecular forces are the attractive and repulsive forces that exist between molecules. These forces are electrostatic in nature, and include van der Waals forces, hydrogen bonds, dipole-dipole forces, and London dispersion forces.
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what nacl concentration results when 234 ml of a 0.840 m nacl solution is mixed with 492 ml of a 0.210 m nacl solution?
0.411 M nacl concentration results when 234 ml of a 0.840 m nacl solution is mixed with 492 ml of a 0.210 m nacl solution?
The final concentration of NaCl will be the total moles of NaCl divided by the total volume in liters.
moles NaCl:
234 mls x 1 L / 1000 ml x 0.840 mol/L = 0.196 mols NaCl
492mlx x 1 L / 1000 ml x 0.210 mol/L = 0.103mols NaCl
Total moles = 0.196 + 0.103 = 0.299 moles NaCl
Total volume (L) = 0.234 L + 0.492 L = 0.726 L
Final [NaCl] = 0.299 mols / 0.726 L = 0.411 M (3 sig. figs.)
In 250 mL of a 0.5 M NaCl solution, how many moles of sodium chloride are there?
This leads us to the conclusion that there are 0.125 moles and 7.32 grams of sodium chloride, respectively, in 250 mL of a 0.5 M NaCl solution.
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tyler filled up his bathtub took a bath and then drained the tub explain the meaning of each statement in this situation
The statement B(0) = 0 means when time = 0, depth = 0.
The statement B(1) represents the function after the filling began.
The statement B(9) = 11 means when time = 9, depth = 11.
In the question above, Tyler filled up his bathtub, took a bath, then drained the bathwater in the tub. The phenomenon can be explained in statements.
The statement B(0) = 0 means that when time = 0 (when the tub just began filling), the depth of the water is 0.
The statement B(1) simply represents the function after the filling began on time = 1.
The statement B(9) = 11 means that when time = 9, the depth of the water is 11.
Your question seems incomplete. The completed version is most likely as follows:
Tyler filled up his bathtub, took a bath, and then drained the tub. The function gives the depth of the water, in inches, 7 minutes after Tyler began to fill the bathtub. Explain the meaning of each statement in this situation
A. B(0)=0
B. B(1)
C. B(9)=11
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silver chloride contains 56.34 % ag by mass. calculate the mass (in kg) of silver chloride required to plate 165 micrograms of ag.
The mass of silver chloride (AgCl) required is 390mg when it contains 56.34 % ag by mass and 165 micrograms of Ag.
Given silver chloride contains (p1) = 56.34 % ag by mass
Then, 1 mole of AgCl contains 0.5634 moles of Ag
1 mole of Ag is obtained from 1/0.5634 mole of AgCl
The mass of silver (Ag) = m = 165mg = 165 x 10^-6g
The atomic mass of silver (M) = 107g/mole
Then the number of moles of Ag required (n) = 165/107 = 0.00154mole
Now 0.00154 mole of Ag is obtained from = 0.00154/0.5634 = 0.00273 moles of AgCl.
The molar mass of AgCl = 143g/mole
mass of AgCl required = moles x molar mass = 0.00273 x 143 = 0.390g
Hence the mass of AgCl required is 390mg
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if the stock ampicillin solution is 10 mg/ml, how much of the stock solution should be added to 50 ml of lb broth for a final concentration of 100 ug/ml ampicillin?
If the stock ampicillin solution is 10 mg/mL, the stock solution should be added to 50 mL of lb broth for a final concentration of 100 ug/mL ampicillin would be 0.505 mL
When making experimental solutions, a volume of a stock solution with a certain concentration is added to the diluted solution to increase its concentration. This following formula can be used to determine the stock solution's volume:
Cstock x Vstock = Cfinal x Vfinal
Take note that the value Vfinal represents the total volume of the solution (the volume of the stock plus the volume of the medium for bacterial growth).
Thus, the stock solution should be added would be:
(10 mg/mL) x (X) = (0.1 mg/mL) x (50 mL + X)
X = 0.505 mL ampicillin stock solution
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Who were the first people to attempt to explain chemical changes?
Democritus and Aristotle, Greek philosophers who proposed early theories on the matter's nature and the changes it experiences, are credited with making the first attempt at explaining chemical processes.
In science, what exactly is a chemical change?A chemical change, often known as a chemical reaction, is the activity whereby an one or more materials are converted chemically into another. A drug combining with another substance may be necessary in this situation. It might also entail a substance disintegrating into other substances.
Does burning sheets cause a chemical change?Because ash is created throughout the burning process as an unique chemical substance, scorching paper results in a chemical change. Carbon reacts with nitrogen and oxygen during combustion to produce carbon dioxide (CO2) and water. substance.
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4Fe+ 3O2 > 2Fe2O3 To produce 3 moles of Fe2O3 how many moles of Fe must be reacted?
Answer: 6 mol Fe
Explanation: For every 2 mol of Fe2O3, 4 mol of Fe react. That means for every mol of Fe2O3, 2 mol of Fe react. 3 mol Fe2O3 require 6 mol Fe.
how many grams of perchloric acid, are contained in of aqueous perchloric acid? how many grams of water are in the same solution?
The total mass of the solution: 37.6 g - 26.529 g = 11.071 g. To determine the amount of perchloric acid in 37.6 g of 70.5 wt% aqueous perchloric acid, we can first calculate the mass of perchloric acid in the solution: 37.6 g * 0.705 = 26.529 g.
Then, to find the number of moles of perchloric acid in the solution, we can divide this mass by the molar mass of perchloric acid, which is 100.5 g/mol: 26.529 g / 100.5 g/mol = 0.2645 moles. The number of grams of water in the solution can be calculated by subtracting the mass of perchloric acid from the total mass of the solution: 37.6 g - 26.529 g = 11.071 g.
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Complete question:
How many grams of perchloric acid, HClO₄, are contained in 37.6 g of 70.5 wt% aqueous perchloric acid? How many grams of water are in the same solution?
give the structure of the principal organic product formed on reaction of benzyl bromide with sodium ethoxide.
The principal organic product formed from the reaction of benzyl bromide with sodium ethoxide is benzyl alcohol (C6H5CH2OH).
The reaction mechanism involves the deprotonation of benzyl bromide by sodium ethoxide to form the benzyloxide intermediate, which then undergoes elimination to produce benzyl alcohol and sodium bromide as the final products.
The reaction between benzyl bromide (C6H5CH2Br) and sodium ethoxide (NaOCH2CH3) can be described as follows:
Deprotonation: Sodium ethoxide acts as a strong base and deprotonates the benzyl bro mide, abstracting a hydrogen ion (H+) from the alpha-carbon. This produces a benzyloxide intermediate (C6H5CH2O-).Elimination: In this step, the benzyloxide intermediate undergoes a dehydration reaction, losing a molecule of water (H2O) to form benzyl alcohol (C6H5CH2OH) and sodium bromide (NaBr) as the final products.
The reaction between benzyl bromide and sodium ethoxide is a classic example of an alkoxide-promoted deprotonation and elimination reaction, which is a common method for synthesizing alcohols from alkyl halides.
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what is the maximum number of bonds phosphorous can form?
Phosphorus (P) having atomic number 15 can only make a maximum of five bonds.
Describe phosphorus.A mineral called phosphorus is found in many foods naturally and can also be taken as a supplement. It has a number of functions in the body. It is a crucial component of cell membranes, bones, and teeth. It maintains a normal range of blood pH and aids in the activation of enzymes.
What foods are phosphorus-rich?Many meals naturally contain phosphorus, but dairy, poultry, shellfish, legumes, and nuts are the largest sources. These foods contain what is referred to as organic phosphorus. Animal foods absorb it more effectively than plant foods do.
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the density of 0.763 m acetic acid, c2h4o2, solution is 1.004 g/ml. what is the molal concentration of acetic acid?
The molality or the molal concentration of acetic acid is 0.796 molal.
What is the molality of the solution?The molarity of the solution is 0.763 mol/L
The density of the solution is 1.004 g/mL. Hence, the mass of 1 liter solution is 1004 g
The mass of the solute in 1 Liter 0.763 M acetic acid = 0.763 mol/L * 60 g/mol
The mass of the solute in 0.763 M acetic acid = 45.78 g
Mass of water = 1004 - 45.78 g
Mass of water = 958.22 g or 0.95822 Kg
Molality of solution = 0.763/0.95822
Molality of solution = 0.796 molal
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The Site Where Communication Occurs Between Neurons Through The Release Of Chemicals Is Called ? A. Axon B. Synapse C.Cell Body D. Dendrit
Site of Neuronal Communication, where Chemicals are Released Synapse: The connection between a neuron's axon and dendrite at which two neurons exchange information.
How do synapses function?The connectors known as synapses are where neurons converse with one another. At the synapse, a neuron connects with an aim cortex cell. Chemical messengers are used by most synapses to interact with one another.
What does a brain synapse do?Synapses are the points where neurons connect and communicate. Each neuron has anything from a few to hundreds of millions of synaptic connections, which may be with other neurons inside its own part of the brain, neurons nearby, or neuron in other regions.
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Water is a liquid at room temperature. this is due to?
Solution: Water is liquid at room temperature because the molecules of water are bound by H bonding so the water molecules are not able to move freely and behave as a liquid.
Solid, liquid and gases differ in their densities, their arrangement of atoms/ molecules and their bonding or force of attraction between the atoms/ molecules. Water is liquid because molecules of water have medium intermolecular space between them and weak force of attraction which allow the molecules of water to move within the limit so it can only flow. Another reason for the liquid nature of water is presence of H bonding which hold the water molecules and don’t let them move freely. The energy needed to break the H bond is moderate and not available at room temperature. Hence water is liquid at room temperature.
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howmanyliters of a 25% saline solution must be added to 3 liters of a 10% saline solution to obtain a 15%saline solution
2 liters of a 25% saline solution must be added to 3 liters of a 10% saline solution to obtain a 15% saline solution.
To obtain a 15% saline solution, you must add 2 liters of a 25% saline solution to 3 liters of a 10% saline solution. This is calculated using the following equation:
(3 x 0.10) + (x x 0.25) = (x + 3) x 0.15Where x is the number of liters of the 25% saline solution. Solving for x, we get x = 2. Therefore, 2 liters of a 25% saline solution must be added to 3 liters of a 10% saline solution to obtain a 15% saline solution.
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what is a solution where additional solute can be dissolved without outside stress?
Unsaturated solutions are those that have not attained their maximal solubility. This implies that even after adding more solute, the solvent would continue to dissolve the solute.
What is an example of a solute?A solute is a material that dissolves in a solution. The volume of fluid present in fluid solutions is larger than the quantity of solute. The two most common examples of solutions in daily life are salt and water. Salt is the solute because it dissolves in water.
What is an illustration of a solvent?Solvent Case Studies. The usual examples of liquids include acetone, ethanol, water, and methanol.
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a disulfide bridge is an example of which type of bond?
A disulfide bridge is an example of Covalent bond between R groups.
A disulfide bridge is a form of a bond, right?Disulfide bridges are also known as S-S bonds or disulfide bonds. These covalent bonds between two cysteine amino acids' sulfur atoms serve to stabilize proteins' tertiary and higher-order structures.
What kinds of bonding contain disulfides?The linkage, which is also known as an SS-bond or occasionally a disulfide bridge, is typically created by joining two thiol groups. Disulfide bridges between thiol groups in two cysteine residues play a significant role in the secondary and tertiary structure of proteins in biology.
What kind of molecule are disulfide bonds?Disulfide bonds are a crucial structural component that stabilizes the 3D structure of mature proteins and/or causes them to display physiologically significant. They are primarily present in membrane proteins' extracellular domains and secretory proteins.
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nacl [table salt] made up of na and cl ions dissolves in water but not in paint thinner. it is therefore a:
It is therefore an ionic compound, if NaCl is made up Na and Cl ions.
NaCl is an ionic solid. It dissociates into [tex]Na^{+}[/tex] and [tex]Cl^{-}[/tex] ions when it dissolves in water. By creating ion-dipole interactions, water molecules solvate these ions. The chemical equation for the dissociation of sodium chloride into [tex]Na^{+}[/tex] ions and [tex]Cl^{-}[/tex] ions when salt is dissolved in water is:
NaCl (s) → [tex]Na^{+} (aq) + Cl^{-} (aq)[/tex]
As a result, adding salt to water causes a chemical change. The products differ from the reactant (sodium chloride, or NaCl), which (sodium cation and chlorine anion). Therefore, a chemical change would occur in any ionic molecule that is soluble in water.
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compound a has a boiling point of 200 oc, while compound b has a boiling point of 100 oc. which is more of a safety concern?
Compound B should raise more safety concerns than compound A because the vapour pressure of the bottle of the liquid with a low boiling point will be higher than that of the liquid with a high boiling point.
What causes a compound's vapour pressure to rise? Higher intermolecular forces?The average energy of the particles present increases as the temperature rises. That implies that a greater number of them are probably energetic enough to break off from the liquid's surface. The vapour pressure will likely rise as a result.
What causes a compound's vapour pressure to be higher?Types of Molecules: A solid's or liquid's vapour pressure is determined by the kinds of molecules that make up the substance. The vapour pressure will be relatively low if the intermolecular interactions between molecules are quite strong. The vapour pressure will be high since the substance is relatively weak.
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a 14.71 g sample of nabr contains 22.34% na by mass. how many grams of sodium does a 6.45 g sample of sodium bromide contain?
1.44 grams of sodium does a 6.45 g sample of sodium bromide contain.
What is sodium bromide?
The chemical compound sodium bromide has the formula NaBr. It is synthetic. It resembles sodium chloride and is a highly volatile, white, crystalline substance. The bromide radical is frequently utilised with this salt. In the chemistry and pharmaceutical industries, this salt has several uses. It cannot naturally occur in the rocks or naturally occurring minerals due to its solubility. Halides, chlorides, and iodides are a few of the chemical substances that are recovered from the ocean water.
22.34% of the mass of Na will be present in any sample of NaBr.
Thus, the 14.71 g is unimportant.
22.34 % of 6.45 = 0.2234 x 6.45 = 1.44093g
Cite your response for 3 significant numbers, which is 1.44 g, since 22.34 has 4 significant figures and 6.45 has 3.
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Rank the following ions in order of increasing basicity. Be sure to answer all parts. CH3CH2 CH3NH CH3O intermediate basicity highest basicity lowest basicity ? Rank the following ions in order of increasing basicity. Be sure to answer all parts. SI CI lowest basicity intermediate basicity highest basicity
The basicity hierarchy is CH3CH2 CH3NH CH3O, where CH3O has the highest basicity, CH3NH has a middle basicity, and CH3CH2 has the lowest basicity.
What is base?In order to raise the concentration of hydroxide ions (OH-) in a solution, a chemical must be able to receive hydrogen ions (protons).
An ion's basicity is determined by its capacity to transfer electrons to an acidic species like a proton (H+), which is an acidic species. An atom's ability to transfer electrons decreases with increasing electronegativeness, which also lowers its basicity. Because CH3CH2 is a non-polar alkane without any functional groups that can transfer electrons, it has a low basicity. Because nitrogen is more electronegative than carbon and can take part in reactions that donate electrons, CH3NH is more basic than CH3CH2. Because oxygen is much more electronegative than nitrogen and can take part in more powerful electron-donating reactions, CH3O is the most basic of the three.
CI has a lower basicity than SI, whereas SI has a higher basicity. If an ion can receive a proton (H+) to form a bond, it is said to be basic. The lower the basicity and less probable an atom is to receive a proton, the more electronegative it is. CI is less basic than SI because carbon has a lower electronegative potential than silicon.
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